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TI-2017-09460 Aliases CVE-2017-12778GHSA-4j9x-m99x-9xm4

The UI Lock feature in qBittorrent version 3.3.15 is vulnerable to Authentication Bypass…

Priority LOW 32CWE-287Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

The UI Lock feature in qBittorrent version 3.3.15 is vulnerable to Authentication Bypass, which allows Attack to gain unauthorized access to qBittorrent functions by tampering the affected flag value of the config file at the C:\Users\<username>\Roaming\qBittorrent pathname. The attacker must change the value of the "locked" attribute to "false" within the "Locking" stanza. NOTE: This is an intended behavior. See https://github.com/qbittorrent/qBittorrent/wiki/I-forgot-my-UI-lock-password

Why it matters now

EPSS 0.00478 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qbittorrent:qbittorrent:3.3.15:*:*:*:*:*:*:*3.3.15VulnerableqBittorrent
  • cpe:2.3:a:qbittorrent:qbittorrent:3.3.15:*:*:*:*:*:*:* Versions 3.3.15 Vulnerable ·qBittorrent

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12778
  2. 2026-10-03 Alias added: GHSA-4j9x-m99x-9xm4

References

Exploit 1

Other 2

  • TI-2024-34679 qBittorrent before 5.0.1 proceeds with use of https URLs even after certificate validation errors. CVSS 3.1HIGH 8.1
  • TI-2019-10249 In qBittorrent before 4.1.7, the function Application::runExternalProgram() located in… CVSS 3.0CRITICAL 9.8
  • TI-2023-14611 qBittorrent Web UI Default Credentials Lead to RCE CVSS 3.1CRITICAL 9.8
  • TI-2017-04288 WebUI in qBittorrent before 3.3.11 did not escape many values, which could potentially lead to XSS. CVSS 3.0MEDIUM 6.1
  • TI-2017-04289 WebUI in qBittorrent before 3.3.11 did not set the X-Frame-Options header, which could potentially lead to clickjacking. CVSS 3.0MEDIUM 6.1
  • TI-2025-34137 qBittorrent before 5.1.2 does not prevent access to a local file that is referenced in a… CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences